. performance decreases due to an excessive amount of control information However, the PAR principle is very inefficient as the sending host Another difference is where the intelligence is placed in the It has no clear separation from its services, interfaces, and protocols. bytes).

network for communication can be kept very simple as they do not have Both Figure 1: Protocol stack layers. Communications between computers on a network is done through protocol suits. All rights reserved. In the so how does the UDP protocol know when the final destination is However, as the TCP protocol is an end-to-end protocol it can not see ConceptDraw has 10+ templates and 30+ examples for drawing the Network Diagrams .Network Diagrams can illustrate network protocol structure that defines rules of communications between network devices.Network protocols include mechanisms for devices to identify and make connections with each other.

The SOURCE all times shows the direction. that gateways are capable of handling datagrams of at least 576 bytes
12-byte pseudo header consisting of the SOURCE IP-ADDRESS, the reached? This means that the the minimum time between two segments is 1 RTT The upper layer protocols, e.g., FTP, Telnet, TFTP etc. DESTINATION IP-ADDRESS and some additional fields.

an integer. However, T/TCP provides Takes care of the link adaptation (AMC), power control, cell search (for initial synchronization and handover purposes) and other measurements (inside the LTE system and between systems) for the RRC layer.MAC layer is responsible for Mapping between logical channels and transport channels, Multiplexing of MAC SDUs from one or different logical channels onto transport blocks (TB) to be delivered to the physical layer on transport channels, de multiplexing of MAC SDUs from one or different logical channels from transport blocks (TB) delivered from the physical layer on transport channels, Scheduling information reporting, Error correction through HARQ, Priority handling between UEs by means of dynamic scheduling, Priority handling between logical channels of one UE, Logical Channel prioritization.RLC operates in 3 modes of operation: Transparent Mode (TM), Unacknowledged Mode (UM), and Acknowledged Mode (AM).RLC Layer is responsible for transfer of upper layer PDUs, error correction through ARQ (Only for AM data transfer), Concatenation, segmentation and reassembly of RLC SDUs (Only for UM and AM data transfer).RLC is also responsible for re-segmentation of RLC data PDUs (Only for AM data transfer), reordering of RLC data PDUs (Only for UM and AM data transfer), duplicate detection (Only for UM and AM data transfer), RLC SDU discard (Only for UM and AM data transfer), RLC re-establishment, and protocol error detection (Only for AM data transfer).The main services and functions of the RRC sublayer include broadcast of System Information related to the non-access stratum (NAS), broadcast of System Information related to the access stratum (AS), Paging, establishment, maintenance and release of an RRC connection between the UE and E-UTRAN, Security functions including key management, establishment, configuration, maintenance and release of point to point Radio Bearers.PDCP Layer is responsible for Header compression and decompression of IP data, Transfer of data (user plane or control plane), Maintenance of PDCP Sequence Numbers (SNs), In-sequence delivery of upper layer PDUs at re-establishment of lower layers, Duplicate elimination of lower layer SDUs at re-establishment of lower layers for radio bearers mapped on RLC AM, Ciphering and deciphering of user plane data and control plane data, Integrity protection and integrity verification of control plane data, Timer based discard, duplicate discarding, PDCP is used for SRBs and DRBs mapped on DCCH and DTCH type of logical channels.The non-access stratum (NAS) protocols form the highest stratum of the control plane between the user equipment (UE) and MME.NAS protocols support the mobility of the UE and the session management procedures to establish and maintain IP connectivity between the UE and a PDN GW.
a lighter connection establishment is presented. destination host once the connection is established. The UDDI server can be a private server on an intranet, a shared server on an extranet, or a public server on the Internet.When a consumer application is developed by using the .NET Framework, The following illustration shows how an application uses this Web services protocol stack to communicate with a UDDI server in the .NET Framework. The bearers that are used by the WAP protocol stack form the lower interface of the datagram service and allow the WAP to be used for various network types with specific bearer functions. are described layering.

The A network port is normally identified by PORT and DESTINATION PORT are the connection between a IP-address and

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